6340766994 has 20 divisors (see below), whose sum is σ = 14208015294. Its totient is φ = 2113588944.

The previous prime is 6340766977. The next prime is 6340767047. The reversal of 6340766994 is 4996670436.

It can be written as a sum of positive squares in only one way, i.e., 3429624969 + 2911142025 = 58563^2 + 53955^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 6340766994.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19570107 + ... + 19570430.

Almost surely, 2^6340766994 is an apocalyptic number.

6340766994 is an abundant number, since it is smaller than the sum of its proper divisors (7867248300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6340766994 is a wasteful number, since it uses less digits than its factorization.

6340766994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39140551 (or 39140542 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 54.

The square root of 6340766994 is about 79628.9331461875. The cubic root of 6340766994 is about 1850.8899535037.

The spelling of 6340766994 in words is "six billion, three hundred forty million, seven hundred sixty-six thousand, nine hundred ninety-four".